#!/usr/bin/env python
from __future__ import print_function

import struct
import sys

if len(sys.argv) != 3:
  print("Usage: r1 r2")
  sys.exit(1)

a = int(sys.argv[1], 16)
b = int(sys.argv[2], 16)
s = struct.pack(">LL", a, b)
d = struct.unpack(">d", s)[0]
print(d)